EP3139469A1 - Rotating electrical machine provided with a rotor comprising claw-shaped poles - Google Patents
Rotating electrical machine provided with a rotor comprising claw-shaped poles Download PDFInfo
- Publication number
- EP3139469A1 EP3139469A1 EP16182053.5A EP16182053A EP3139469A1 EP 3139469 A1 EP3139469 A1 EP 3139469A1 EP 16182053 A EP16182053 A EP 16182053A EP 3139469 A1 EP3139469 A1 EP 3139469A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- claw
- electric machine
- machine according
- rotary electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 238000004804 winding Methods 0.000 claims description 22
- 230000004907 flux Effects 0.000 claims description 20
- 230000007423 decrease Effects 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 abstract description 24
- 101100042630 Caenorhabditis elegans sin-3 gene Proteins 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 241000897276 Termes Species 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 101100135641 Caenorhabditis elegans par-3 gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
- H02K1/243—Rotor cores with salient poles ; Variable reluctance rotors of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Definitions
- the present invention relates to a rotor for a rotating electrical machine comprising north and south poles alternately formed in a direction of rotation of the rotor.
- the invention finds a particularly advantageous application in the field of alternators, alternator starters of a motor vehicle.
- a rotating electrical machine comprises a stator provided with coils surrounding a rotor integral with a shaft.
- the rotor and the stator are spaced apart by an air gap.
- the rotor may be integral with a driving shaft and / or driven and may belong to a rotating electrical machine in the form of an alternator as described in document EP0803962 or an electric motor as described in the document EP0831580 .
- the figure 1 which is a half-sectional view, represents a polyphase rotating electrical machine in the form of an alternator of the three-phase type with internal ventilation for a motor vehicle with an internal combustion engine of the type described in document EP-A-0 515 259 to which we will refer.
- the alternator includes, going from left to right of the figure 1 , that is to say, from front to back, a drive pulley 11 secured to the front end of a shaft 2, the rear end of which bears collector rings 10a, 10b belonging to a collector 1.
- the axis XX of the shaft 2 constitutes the axis of rotation of the machine and the collector.
- the shaft 2 carries the rotor 4 with an excitation winding 5 wound around a cylindrical portion 300, the ends of which are connected by wire links to the collector 1, as can also be seen in FIG. FR 2,710,197 , FR 2 710 199 and FR 2,710,200 .
- the rotor 4 is here a claw rotor and therefore comprises two pole wheels 6, 7 each respectively carrying a front fan 8 and rear 9 each with blades as in the document EP-A-0 515 259 .
- the cylindrical portion 300 is example formed of two half-cores 65 and 75 respectively belonging to the pole wheel 6 and 7.
- Each pole wheel has a plate and axial teeth or claws directed towards the other wheel with interlocking teeth from one wheel to another for forming magnetic poles.
- the magnetic poles are activated when the winding 5 is traversed by a current thanks to the slip rings of the collector 1 each in contact with a brush (not referenced) carried by a brush holder 100 integral in this embodiment of a regulator voltage not visible.
- the brushes are radially oriented relative to the X-X axis, while the rings 10a, 10b are axially oriented with respect to the X-X axis.
- the rotor having an angular polar pitch Theta equal to 2 ⁇ divided by 2P, P being the number of pole pairs of the rotor and each pole being made for example by a claw.
- the regulator is connected to a direct current rectifying device 110, such as a diode bridge (two of which are visible at figure 1 ) or alternatively transistors of the MOSFET type, especially when the alternator is of the reversible type and consists of an alternator-starter as described for example in the document WO 01/69762 .
- This device 110 is itself electrically connected, on the one hand, to the outputs of the phases belonging to the windings 12, which comprises the stator 13 of the alternator, and on the other hand, to the vehicle's electrical system and battery. automobile.
- This stator 13, forming an armature in the case of an alternator surrounds the rotor 4 and comprises a body 14 provided internally with axial notches (not visible) and windings 12.
- the axial notches are provided with the son or pins of the windings 12.
- These windings 12 have buns (not referenced) extending, on the one hand, in axial projection of part and of other of the body 14; and, on the other hand, radially above the fans 8, 9.
- the voltage regulator has the function of controlling the current flowing in the excitation winding 5 to regulate the voltage delivered to the vehicle's electrical system and battery via the current rectifying device 110.
- the fans 8, 9 extend in the vicinity respectively of a front flange, called front bearing 150, and a rear flange, called rear bearing 160 belonging to the fixed housing of the electrical machine connected to ground.
- the bearings 150, 160 are perforated for internal ventilation of the alternator via the fans 8, 9 when the fan assembly 8, 9 - rotor 4 - shaft 2 is rotated by the pulley 11 connected to the motor of the generator.
- motor vehicle by a transmission device comprising at least one belt engaged with the pulley 1.
- This ventilation is used to cool the windings 12, 5 and the brush holder 100 with its regulator and the straightening device 110. It is represented by arrows at the figure 1 the path followed by the coolant, here air, through the different openings of the bearings 150, 160 and inside the machine.
- This device 110, the brush holder 100 and a perforated protective cover are carried here by the rear bearing 160 so that the rear fan 9 is more powerful than the front fan 8.
- the bearings 150, 160 are interconnected, here using screws or tie rods not visible, to form a housing to be mounted on a fixed part of the vehicle.
- the bearings 150, 160 each centrally carry a ball bearing 17, 18 for rotatably supporting the front and rear ends of the shaft 2 passing through the bearings 150, 160 to carry the pulley 11 and the rings 10a, 10b of the manifold 1.
- bearings have a hollow shape and here each have a portion of perforated transverse orientation carrying the bearing 17, 18 and a portion of axial orientation apertured and internally staggered in diameter to axially center and retain the stator 13 when the two bearings are connected together to form the housing.
- the blades of the fans 8, 9 extend radially above the housings that have the bearings 150, 160 for mounting the bearings 17 and 18; which are thus broken down.
- the variation of the magnetic flux allows the generation of an alternating voltage in each phase of a winding, in the case of a multiphase winding.
- the alternating voltages thus generated are coupled and rectified to obtain a continuous charge voltage of the battery.
- the AC voltage has several frequency components.
- these components are in particular the fundamental and the harmonic 3 whose frequency is three higher than that of the fundamental.
- the cutting plane is defined as being perpendicular to the axis of the machine, said angular aperture being defined as the maximum angle between two straight lines each passing through said axis of the machine and a point of the central outer surface, said two straight lines being contained in said section plane.
- the electromotive force of a resulting phase of the harmonic 1 and the harmonic 3 has a peak greater than what would be obtained conventionally.
- the figure 2 illustrates a rotor of a rotating electrical machine according to the invention.
- the rotor of the figure 2 is different from that of the rotating electric machine of the figure 1 references to the identical elements being taken between the figures 1 and 2 .
- the claw 71 has three outer surfaces 711, 712 and 713. These three outer surfaces each correspond to an outer surface of the rotor seen from the stator. To distinguish them, the outer surface 712 is called the central outer surface, while the two zones 711 and 713 are called peripherals.
- the central outer surface 712 having a planar surface ortho radial direction so that the flux transmitted from the rotor to the stator increases steadily on this central outer surface 712. Moreover, the radial distance between the outer surface and the Stator notches are minimized to maximize the flux transmitted from the rotor to the stator. In other words, the surface outer corresponding to the central outer surface 712 faces the notches of the stator and the radial distance between all the points of this outer surface and the stator is less than three times the gap.
- the outer surface 712 extends axially on the outer surface of the claw 71 of the connection zone between the claw and the plate of the polar wheel to the end of the claw.
- a cutting plane of the claw 71 is defined which is perpendicular to the axis of the machine.
- the outer surface 712 has an angular aperture in this sectional plane which is defined as the maximum angle between two straight lines passing through said axis of the machine and a point of the outer surface 712 contained in said section plane.
- the angular aperture varies when the cutting plane is displaced axially on the claw 71.
- the opening Obe is defined as the maximum angular aperture of the external surface 712 when the plane of rotation is displaced. axially cut.
- This central outer surface 712 is bordered on its two circumferential ends by the two outer peripheral surfaces 711 and 713.
- these external surfaces are made by two chamfers.
- they have a flat surface having an angle of more than 30 ° with the central outer surface 712.
- the central outer surface 712 could be bordered by a peripheral external surface on one of its ends, for example on the right with the peripheral outer surface 713.
- Claw 71 includes an unillustrated inner surface located on the inside and facing the spool.
- a peripheral outer surface or the two outer peripheral surfaces 711 and 713 connect the central outer surface to the inner surface.
- the angular aperture of said inner surface is greater than the angular aperture of the central outer surface 712.
- the outer peripheral surfaces 711 and 713 must have a discontinuity with the outer surface 712.
- the contribution of the peripheral outer surfaces 711 and 713 to the flow transmitted by the claw 71 is strongly limited.
- the flux transmitted by the claw 71 increases constantly on the central outer surface 712 of maximum angular aperture Obe and remains constant on the outer peripheral surfaces 711 and 713.
- the The flux of a phase increases steadily when the surface 712 passes in front of this phase while this flux remains constant when the surfaces 711 and 713 pass.
- the figure 3 illustrates a curve 310 of the flux transmitted by a rotor having a claw as described in FIG. figure 2 .
- This curve is represented in an orthonormal coordinate system comprises on the abscissa an axis 301 and ordinate an axis 302.
- the axis 301 is expressed in angular unit, for example in degree.
- the axis 301 expresses the rotation angle of the rotor.
- Axis 302 is expressed in Weber.
- the curve 310 thus makes it possible to express in Weber the value of the flux transmitted by the rotor as a function of its angular position expressed in degrees.
- the curve 310 has mainly three zones 311, 312 and 313.
- the zone 312 of constant increase in flux corresponds to the external surface 712 mentioned in FIG. figure 2
- the zones 311 and 313 correspond to the external surfaces 711 and 713 mentioned in FIG. figure 2 .
- the figure 4 illustrates a curve 410 of the electromotive force also called FEM according to an acronym Anglo-Saxon well known to those skilled in the art.
- the curve illustrates the electromotive force generated for a phase of the rotor winding having a claw as described in FIG. figure 2 .
- This curve 410 is represented in an orthonormal coordinate system comprises on the abscissa an axis 401 and ordinate an axis 402.
- the axis 401 is expressed in angular unit, for example in degree.
- the axis 401 expresses the rotation angle of the rotor.
- the axis 402 is expressed in Volt.
- the curve 410 allows thus to express in volt the electromotive force for a phase as a function of the angular position of the rotor expressed in degrees.
- the curve 410 has mainly three zones 411, 412 and 413.
- the zone 412 of maximum value of the electromotive force corresponds to the external surface 712 mentioned in FIG. figure 2
- zones 411 and 413 of electromotive force zero correspond to the external surfaces 711 and 713 mentioned in FIG. figure 2 .
- the zone 412 has the angular aperture Obe is the angular width K * Theta expressed as a function of the polar pitch Theta.
- the maximum of the area 412 is defined by the value V.
- the figure 6 illustrates a curve 610 which corresponds to the maximum value as a function of the K of the electromotive force difference between two non-successive phases for a 5-phase system, that is to say that the curve 610 corresponds to the electromotive force obtained at the of the rectifier for a 5-phase star coupling. It can be expressed as a formula: V 1 - V 3 max
- This curve 610 is represented in an orthonormal coordinate system comprises on the abscissa an axis 601 and ordinate an axis 602.
- the axis 601 is without unit.
- the axis 601 corresponds to the value of K mentioned above.
- the axis 602 is expressed in Volt.
- the curve 610 thus makes it possible to express in volt 610 the resulting electromotive force as a function of the value of K.
- V 1 - V 3 max max t V 1 st max ⁇ cos ⁇ ⁇ t + V 3 rd max ⁇ cos 3 ⁇ ⁇ ⁇ t - V 1 st max ⁇ cos ⁇ ⁇ t - 4 ⁇ 5 - V 3 rd max ⁇ cos 3 ⁇ ⁇ ⁇ t - 12 ⁇ 5 which is obtained by considering the vertices of the harmonic 1 which coincide with the vertices of the harmonic 3.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
L'invention porte principalement une machine électrique tournante, par exemple un alternateur, comprenant un rotor (4) et un stator muni d'encoches destinées à recevoir un bobinage. Dans cette invention, le rotor comprend des pôles nord (N) et sud (S) formés alternativement dans un sens de rotation du rotor, ledit rotor présentant un pas polaire angulaire (Thêta) égal à 2À divisé par 2P, P étant le nombre de paires de pôles du rotor; et ledit rotor (4). Chaque pôle magnétique en forme de griffe (61, 62, 71) comprend une première surface externe (712) qui fait face auxdites encoches. La première surface externe (712) présente une ouverture angulaire dans un plan de coupe d'un des pôles en forme de griffe, ladite l'ouverture angulaire maximale (Obe) pour l'ensemble des plans de coupe d'un des pôles en forme de griffe est égale à Obe = K x Thêta, avec K compris entre 0,4 et 0,8.The invention relates mainly to a rotating electrical machine, for example an alternator, comprising a rotor (4) and a stator provided with notches for receiving a coil. In this invention, the rotor comprises north (N) and south (S) poles alternately formed in a direction of rotation of the rotor, said rotor having an angular polar pitch (Theta) equal to 2λ divided by 2P, where P is the number of pairs of rotor poles; and said rotor (4). Each claw-shaped magnetic pole (61, 62, 71) includes a first outer surface (712) facing said notches. The first external surface (712) has an angular opening in a cutting plane of one of the claw-shaped poles, said maximum angular aperture (Obe) for all the cutting planes of one of the poles-shaped of claw is equal to Obe = K x Theta, with K between 0.4 and 0.8.
Description
La présente invention porte sur un rotor pour une machine électrique tournante comprenant des pôles nord et sud formés alternativement dans un sens de rotation du rotor.The present invention relates to a rotor for a rotating electrical machine comprising north and south poles alternately formed in a direction of rotation of the rotor.
L'invention trouve une application particulièrement avantageuse dans le domaine des alternateurs, des alterno-démarreurs de véhicule automobile.The invention finds a particularly advantageous application in the field of alternators, alternator starters of a motor vehicle.
De façon connue en soi, une machine électrique tournante comporte un stator muni de bobinages entourant un rotor solidaire d'un arbre. Le rotor et le stator sont espacés entre eux par un entrefer. Le rotor pourra être solidaire d'un arbre menant et/ou mené et pourra appartenir à une machine électrique tournante sous la forme d'un alternateur comme décrit dans le document
La
L'alternateur comporte, en allant de gauche à droite de la
Centralement l'arbre 2 porte à fixation le rotor 4 doté d'un bobinage d'excitation 5 enroulée autour d'une portion cylindrique 300, dont les extrémités sont reliées par des liaisons filaires au collecteur 1 comme visible également à la figure 11 des documents
Chaque roue polaire présente un plateau et des dents axiales ou griffes dirigées vers l'autre roue avec imbrication des dents d'une roue à l'autre pour formation de pôles magnétiques.Each pole wheel has a plate and axial teeth or claws directed towards the other wheel with interlocking teeth from one wheel to another for forming magnetic poles.
En d'autres termes, ledit rotor 4 comprend :
- une bobine de
rotor 5 permettant de générer un flux magnétique au passage d'un courant électrique; et - une paire roues polaires 6, 7 composées de :
- une portion cylindrique 300 sur laquelle ladite bobine de
rotor 5 est enroulée; - des plateaux s'étendant radialement vers l'extérieur depuis des première et seconde portions d'extrémité de ladite portion cylindrique 300; et
- une pluralité de pôles magnétiques en forme de griffe s'étendant axialement depuis lesdits plateaux de façon à recouvrir ladite bobine de
rotor 5, lesdits pôles magnétiques en forme de griffe étant aimantés avec lesdits pôles nord et sud N, S.
- une portion cylindrique 300 sur laquelle ladite bobine de
- a
rotor coil 5 for generating a magnetic flux at the passage of an electric current; and - a pair of
6, 7 consisting of:polar wheels - a
cylindrical portion 300 on which saidrotor coil 5 is wound; - trays extending radially outwardly from first and second end portions of said
cylindrical portion 300; and - a plurality of claw-shaped magnetic poles extending axially from said platens so as to cover said
rotor coil 5, said claw-shaped magnetic poles being magnetized with said north and south poles N, S.
- a
Les pôles magnétique sont activés lorsque le bobinage 5 est traversé d'un courant grâce aux bagues collectrices du collecteur 1 chacune en contact avec un balai (non référencé) porté par un porte-balais 100 solidaire dans ce mode de réalisation d'un un régulateur de tension non visible. Les balais sont d'orientation radiale par rapport à l'axe X-X, tandis que les bagues 10a, 10b sont d'orientation axiale par rapport à l'axe X-X.The magnetic poles are activated when the winding 5 is traversed by a current thanks to the slip rings of the collector 1 each in contact with a brush (not referenced) carried by a
Le rotor présentant un pas polaire angulaire Thêta égal à 2π divisé par 2P, P étant le nombre de paires de pôles du rotor et chaque pôle étant réalisé par exemple par une griffe.The rotor having an angular polar pitch Theta equal to 2π divided by 2P, P being the number of pole pairs of the rotor and each pole being made for example by a claw.
Le régulateur est relié à un dispositif de redressement de courant alternatif en courant continu 110, tel qu'un pont de diodes (dont deux sont visibles à la
Pour mémoire on rappellera que le régulateur de tension a pour fonction de contrôler le courant circulant dans le bobinage d'excitation 5 pour réguler la tension délivrée au réseau de bord et à la batterie du véhicule via le dispositif redresseur de courant 110.For the record it will be recalled that the voltage regulator has the function of controlling the current flowing in the excitation winding 5 to regulate the voltage delivered to the vehicle's electrical system and battery via the
Les ventilateurs 8, 9 s'étendent au voisinage respectivement d'un flasque avant, appelé palier avant 150, et d'un flasque arrière, appelé palier arrière 160 appartenant au carter fixe de la machine électrique relié à la masse. Les paliers 150, 160 sont ajourés pour une ventilation interne de l'alternateur par l'intermédiaire des ventilateurs 8, 9 lorsque l'ensemble ventilateurs 8, 9- rotor 4 -arbre 2 est entraîné en rotation par la poulie 11 reliée au moteur du véhicule automobile par un dispositif de transmission comportant au moins une courroie en prise avec la poulie 1. Cette ventilation permet de refroidir les bobinages 12, 5 ainsi que le porte-balais 100 avec son régulateur et le dispositif de redressement 110. On a représenté par des flèches à la
Ce dispositif 110, le porte-balais 100, ainsi qu'un capot de protection ajouré (non référencé) sont portés ici par le palier arrière 160 en sorte que le ventilateur arrière 9 est plus puissant que le ventilateur avant 8. De manière connue, les paliers 150, 160 sont reliés entre eux, ici à l'aide de vis ou de tirants non visibles, pour former un carter destiné à être monté sur une partie fixe du véhicule.This
Les paliers 150, 160 portent chacun centralement un roulement à billes 17, 18 pour supporter à rotation les extrémités avant et arrière de l'arbre 2 traversant les paliers 150, 160 pour porter la poulie 11 et les bagues 10a, 10b du collecteur 1.The
Ces paliers ont une forme creuse et présentent ici chacun une partie d'orientation transversale ajourée portant le roulement 17, 18 et une partie d'orientation axiale ajourée et intérieurement étagée en diamètre pour centrer et retenir axialement le stator 13 lorsque les deux paliers sont reliés ensemble pour former le carter.These bearings have a hollow shape and here each have a portion of perforated transverse orientation carrying the
Les pales des ventilateurs 8, 9 s'étendent radialement au-dessus des logements que présentent les paliers 150, 160 pour montage des roulements 17 et 18; qui ainsi sont ventilés.The blades of the
Lors de la rotation du rotor, la variation du flux magnétique permet la génération d'une tension alternative dans chaque phase d'un bobinage, dans le cas d'un bobinage multiphasé. Les tensions alternatives ainsi générées sont couplées et redressées pour obtenir une tension continue de charge de la batterie.During the rotation of the rotor, the variation of the magnetic flux allows the generation of an alternating voltage in each phase of a winding, in the case of a multiphase winding. The alternating voltages thus generated are coupled and rectified to obtain a continuous charge voltage of the battery.
Cela étant, pour chacune des phases, la tension alternative présente plusieurs composantes fréquentielles. Parmi ces composantes on compte notamment la fondamentale et l'harmonique 3 dont la fréquence est trois supérieure à celle de la fondamentale.However, for each phase, the AC voltage has several frequency components. Among these components are in particular the fundamental and the harmonic 3 whose frequency is three higher than that of the fundamental.
Il est connu de dimensionner la machine afin de maximiser l'amplitude de la fondamentale pour chaque phase afin d'obtenir un meilleur rendement, l'harmonique 3 est perçue comme une perturbation qui baisse le rendement.It is known to size the machine to maximize the amplitude of the fundamental for each phase to obtain a better performance, the harmonic 3 is perceived as a disturbance that lowers the yield.
Il existe donc un besoin pour des machines optimisées qui permettent d'exploiter l'harmonique 3 et de faire en sorte que l'harmonique 3 participe à la charge de la batterie.There is therefore a need for optimized machines that make it possible to exploit the harmonic 3 and to make the harmonic 3 participate in the charging of the battery.
L'invention a ainsi pour objet une machine électrique tournante, par exemple un alternateur, comprenant un rotor et un stator muni d'encoches destinées à recevoir un bobinage,
ledit rotor comprenant des pôles nord (N) et sud (S) formés alternativement dans un sens de rotation du rotor, ledit rotor présentant un pas polaire angulaire Thêta égal à 2π divisé par 2P, P étant le nombre de paires de pôles du rotor; et ledit rotor comprenant :
- une bobine de rotor permettant de générer un flux magnétique au passage d'un courant électrique; et
- une paire de roues polaires composées de :
- une portion cylindrique sur laquelle ladite bobine de rotor est enroulée;
- des plateaux s'étendant radialement vers l'extérieur depuis des première et seconde portions d'extrémité de ladite portion cylindrique; et
- une pluralité de pôles magnétiques en forme de griffe s'étendant axialement depuis lesdits plateaux de façon à recouvrir ladite bobine de rotor, lesdits pôles magnétiques en forme de griffe étant aimantés avec lesdits pôles nord et sud (N, S),
said rotor comprising north (N) and south (S) poles alternately formed in a direction of rotation of the rotor, said rotor having an Theta angular polar pitch equal to 2π divided by 2P, where P is the number of pole pairs of the rotor; and said rotor comprising:
- a rotor coil for generating a magnetic flux at the passage of an electric current; and
- a pair of polar wheels composed of:
- a cylindrical portion on which said rotor coil is wound;
- trays extending radially outwardly from first and second end portions of said cylindrical portion; and
- a plurality of claw-shaped magnetic poles extending axially from said platens so as to cover said rotor coil, said claw-shaped magnetic poles being magnetized with said north and south poles (N, S),
Selon une caractéristique générale de l'invention, chaque pôle magnétique en forme de griffe comprend une première surface externe qui fait face auxdites encoches, et ladite première surface externe présente une ouverture angulaire dans un plan de coupe d'un des pôles en forme de griffe, ladite l'ouverture angulaire maximale Obe pour l'ensemble des plans de coupe d'un des pôles en forme de griffe est égale à Obe = K x Thêta, avec K compris entre 0,4 et 0,8.According to a general characteristic of the invention, each claw-shaped magnetic pole comprises a first external surface which faces said notches, and said first outer surface has an angular opening in a cutting plane of one of the claw-shaped poles, said maximum angular aperture Obe for all of the cutting planes of one of the claw-shaped poles is equal to Obe = K x Theta, with K between 0.4 and 0.8.
Le plan de coupe est défini comme étant perpendiculaire à l'axe de la machine, ladite ouverture angulaire étant définie comme l'angle maximal entre deux droites passant chacune par ledit axe de la machine et par un point de la surface externe centrale, lesdites deux droites étant contenues dans ledit plan de coupe.The cutting plane is defined as being perpendicular to the axis of the machine, said angular aperture being defined as the maximum angle between two straight lines each passing through said axis of the machine and a point of the central outer surface, said two straight lines being contained in said section plane.
On obtient ainsi une optimisation de la force électromotrice et notamment de son pic pour chaque phase. Ainsi, la force électro motrice d'une phase résultante de l'harmonique 1 et de l'harmonique 3 présente un pic supérieur à ce qu'on obtiendrait conventionnellement.An optimization of the electromotive force and in particular of its peak for each phase is thus obtained. Thus, the electromotive force of a resulting phase of the harmonic 1 and the harmonic 3 has a peak greater than what would be obtained conventionally.
Selon d'autres caractéristiques prises individuellement ou en combinaison :
- la distance radiale entre l'ensemble des points de ladite première surface externe et le stator est inférieure à trois fois l'entrefer. On maximise ainsi la valeur du pic de la force électro motrice.
- l'ouverture angulaire de la surface externe centrale est constante pour l'ensemble des plans de coupe du pôle en forme de griffe.
- l'ouverture angulaire de la surface externe diminue pour les plans de coupe qui se rapprochent de l'extrémité du pôle en forme de griffe.
- la première surface externe dite centrale est située dans une zone centrale du pôle en forme de griffe. La première externe surface externe est située dans une zone centrale dans le sens où dans un plan de coupe perpendiculaire à l'axe de la machine tel que défini précédemment les deux distances entre un point de la première surface externe et les deux extrémités droite et gauche de la griffe définies quand on regarde la griffe depuis le stator et que l'extrémité de la griffe est située vers le haut ne sont pas différente de plus de 30%. Par exemple, on peut définir cela en termes mathématiques, si l'on définit dans un plan de coupe, d1 la distance entre un point de la première surface externe et l'extrémité gauche de la griffe et d2 la distance entre le point de la première surface externe et l'extrémité droite de la griffe, on obtient : (d1-d2)/(d1+d2)/2) < 30%. La griffe présente ainsi formée permet d'obtenir une harmonique 3 en phase avec la fondamentale.
- la première surface externe est bordée sur sa périphérie d'au moins une surface externe périphérique, la surface externe périphérique présentant une discontinuité avec la surface externe dite centrale. Ce type de forme permet de maximiser l'harmonique 3 de la force électro motrice.
- la première surface externe est bordée respectivement sur ses deux périphéries de deux surfaces externes périphériques, les deux surfaces externes périphériques présentant chacune une discontinuité avec ladite première surface externe dite centrale. Ce type de forme permet de maximiser l'harmonique 3 de la force électro motrice et permet également que la première surface externe soit située dans une zone grossièrement centrale de la griffe.
- la première surface externe périphérique est formée d'une surface plane.
- la surface externe périphérique est formée d'une surface plane.
- la surface externe périphérique est formée par un chanfrein.
- la surface externe périphérique présente un angle avec la surface extérieure supérieur à 30°. Cela permet d'accentuer encore la discontinuité afin d'obtenir une force électromotrice nulle sur les deux surfaces externes périphériques. En d'autres termes, les plupart des points de la surface externe périphérique sont à une distance radiale supérieure à trois fois l'entrefer. Plus l'angle est accentué plus les points de la surface externe périphérique s'éloignent rapidement au fur et à mesure que l'on progresse circonférentiellement sur le pole en forme de griffe. Ce qui permet de part l'éloignement des points de la surface périphérique par rapport aux encoches du stator d'assurer une force électromotrice nulle pour cette surface périphérique.
- le bobinage du stator présente 5 phases. Il s'agit d'une des machines pour lesquelles l'harmonique 3 n'est pas homopolaire, c'est-à-dire est variable d'une phase à l'autre.
- le bobinage du stator présente 7 phases. Il s'agit d'une des machines pour lesquelles l'harmonique 3 n'est pas homopolaire, c'est-à-dire est variable d'une phase à l'autre Il s'agit d'une des machines pour lesquelles l'harmonique 5 n'est pas homopolaire, c'est-à-dire est variable d'une phase à l'autre..
- le bobinage du stator présente un nombre de phases Nphi, Nphi étant supérieur strictement à 5 et étant impair et non divisible par 3. Il s'agit d'une des machines pour lesquelles l'harmonique 3 n'est pas homopolaire, c'est-à-dire est variable d'une phase à l'autre.
- le bobinage du stator est couplé en étoile. Un tel couplage permet une résultante entre les différentes harmoniques d'ordre 3 résultante des différentes phases favorable.
- the radial distance between all the points of said first external surface and the stator is less than three times the gap. This maximizes the value of the peak of the electro-driving force.
- the angular aperture of the central outer surface is constant for all the cutting planes of the claw-shaped pole.
- the angular aperture of the outer surface decreases for the section planes that approach the end of the claw-shaped pole.
- the first so-called central outer surface is located in a central zone of the claw-shaped pole. The first external outer surface is located in a central zone in the sense that in a sectional plane perpendicular to the axis of the machine as defined above the two distances between a point of the first outer surface and the two right and left ends of the claw set when looking at the claw from the stator and that the end of the claw is located upwards are not different by more than 30%. For example, we can define this in mathematical terms, if we define in a plane of section, d1 the distance between a point of the first external surface and the left end of the claw and d2 the distance between the point of the first external surface and the right end of the claw, we obtain: (d1-d2) / (d1 + d2) / 2) <30%. The claw thus formed allows to obtain a harmonic 3 in phase with the fundamental.
- the first outer surface is bordered on its periphery by at least one peripheral outer surface, the peripheral outer surface having a discontinuity with the so-called central outer surface. This type of shape maximizes the harmonic 3 of the electro-driving force.
- the first outer surface is bordered respectively on its two peripheries of two outer peripheral surfaces, the two outer peripheral surfaces each having a discontinuity with said first outer surface said central. This type of shape maximizes the harmonic 3 of the electromotive force and also allows the first outer surface to be located in a roughly central area of the claw.
- the first peripheral outer surface is formed of a flat surface.
- the peripheral outer surface is formed of a flat surface.
- the peripheral outer surface is formed by a chamfer.
- the outer peripheral surface has an angle with the outer surface greater than 30 °. This makes it possible to further accentuate the discontinuity in order to obtain a zero electromotive force on the two peripheral outer surfaces. In other words, most points of the peripheral outer surface are at a radial distance greater than three times the gap. The more the angle is accentuated the more the points of the outer peripheral surface move away rapidly as one progresses circumferentially on the claw-shaped pole. This allows from the distance of the points of the peripheral surface relative to the notches of the stator to ensure a zero electromotive force for this peripheral surface.
- the winding of the stator has 5 phases. This is one of the machines for which the harmonic 3 is not homopolar, that is to say is variable from one phase to another.
- the winding of the stator has 7 phases. This is one of the machines for which the harmonic 3 is not homopolar, that is to say it is variable from one phase to another. It is one of the machines for which the harmonic 5 is not homopolar, that is to say is variable from one phase to another.
- the winding of the stator has a number of phases Nphi, Nphi being strictly greater than 5 and being odd and not divisible by 3. It is one of the machines for which the harmonic 3 is not homopolar, it is ie is variable from one phase to another.
- the stator winding is star-coupled. Such a coupling allows a resultant between the different order 3 harmonics resulting from the different favorable phases.
L'invention sera mieux comprise à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent. Ces figures ne sont données qu'à titre illustratif mais nullement limitatif de l'invention.
- La
figure 1 , déjà décrite, est une vue schématique en coupe transversale d'une machine électrique comprenant un rotor et un redresseur selon l'état de la technique; - la
figure 2 est une vue d'un rotor selon l'invention, - les
figures 3 et 4 sont respectivement deux courbes du flux magnétique et de la force électromotrice, - les
figures 5a et 5b sont des représentations schématiques des forces électromagnétiques, et - la
figure 6 est une courbe de la valeur maximale de la différence entre deux forces électromagnétiques.
- The
figure 1 , already described, is a schematic cross-sectional view of an electric machine comprising a rotor and a rectifier according to the state of the art; - the
figure 2 is a view of a rotor according to the invention, - the
Figures 3 and 4 are respectively two curves of the magnetic flux and the electromotive force, - the
Figures 5a and 5b are schematic representations of electromagnetic forces, and - the
figure 6 is a curve of the maximum value of the difference between two electromagnetic forces.
Les éléments identiques, similaires, ou analogues conservent la même référence d'une figure à l'autre.Identical, similar or similar elements retain the same reference from one figure to another.
La
Par exemple, la surface externe centrale 712 présentant une surface plane de direction ortho radiale de sorte que le flux transmis du rotor vers le stator augmente de manière constante sur cette surface externe centrale 712. Par ailleurs, la distance radiale entre la surface externe et les encoches du stator est minimisée pour maximiser le flux transmis du rotor vers le stator. En d'autres termes, la surface extérieure correspondant à la surface externe centrale 712 fait face aux encoches du stator et la distance radiale entre l'ensemble des points de cette surface extérieure et le stator est inférieur à trois fois l'entrefer.For example, the central
La surface externe 712 s'étend axialement sur la surface externe de la griffe 71 de la zone de liaison entre la griffe et le plateau de la roue polaire jusqu'à l'extrémité de la griffe.The
On définit un plan de coupe de la griffe 71 qui est perpendiculaire à l'axe de la machine. La surface externe 712 présente une ouverture angulaire dans ce plan de coupe qui est définie comme l'angle maximal entre deux droites passant par ledit axe de la machine et par un point de la surface externe 712 contenues dans ledit plan de coupe.A cutting plane of the
Comme on peut le comprendre l'ouverture angulaire varie lorsque l'on déplace axialement le plan de coupe sur la griffe 71. On définit l'ouverture Obe comme l'ouverture angulaire maximale de la surface externe 712 lorsque l'on déplace le plan de coupe axialement. Cette ouverture Obe peut s'exprimer en fonction du pas polaire angulaire Thêta. On a alors Obe = K x Thêta.As can be understood, the angular aperture varies when the cutting plane is displaced axially on the
En d'autres termes, la surface externe 712 présentant une ouverture angulaire maximale Obe et le flux transmis de la surface externe 712 vers les encoches du stator varie de manière constante.In other words, the
Cette surface externe centrale 712 est bordée sur ses deux extrémités circonférentielles par les deux surfaces externes périphériques 711 et 713. Par exemple, ces surfaces externes sont réalisées par deux chanfreins. Par exemple, elles présentent une surface plane ayant un angle de plus de 30° avec la surface externe centrale 712.This central
Selon un mode de réalisation non illustrée la surface externe centrale 712 pourrait être bordée par une surface externe périphérique sur une seule de ses extrémités, par exemple à droite avec la surface externe périphérique 713.According to an embodiment not illustrated, the central
La griffe 71 comprend une surface intérieure non illustrée située du côté intérieur et faisant face à la bobine. En d'autres termes, une surface externe périphérique ou les deux surfaces externes périphériques 711 et 713 relient la surface externe centrale à la surface intérieure. Par exemple, l'ouverture angulaire de ladite surface intérieure est supérieure à l'ouverture angulaire de la surface externe centrale 712.
En tout état de cause, les surfaces externes périphériques 711 et 713 doivent présenter une discontinuité avec la surface externe 712. Ainsi, on limite fortement la contribution des surfaces externes périphériques 711 et 713 au flux transmis par la griffe 71.In any event, the outer
On peut donc considérer que le flux transmis par la griffe 71 augmente constamment sur la surface externe centrale 712 d'ouverture angulaire maximale Obe et reste constant sur les surfaces externes périphériques 711 et 713. En d'autres termes, quand le rotor tourne, le flux d'une phase augmente de façon constante lorsque la surface 712 passe en face de cette phase alors que ce flux reste constant quand les surfaces 711 et 713 passent.It can therefore be considered that the flux transmitted by the
La
La courbe 310 présente principalement trois zones 311, 312 et 313. La zone 312 d'augmentation constante du flux correspond à la surface externe 712 mentionnée à la
Selon la
La
La courbe 410 présente principalement trois zones 411, 412 et 413. La zone 412 de valeur maximale de la force électromotrice correspond à la surface externe 712 mentionnée à la
Selon la
Sur les
La
La
Il apparaît donc que pour maximaliser la force électromotrice d'ordre 3 résultante en fonction du module de la force électromotrice de la phase d'ordre 3, un couplage étoile 5 phases est plus favorable qu'un couple pentagone 5 phases.It therefore appears that in order to maximize the resulting order 3 electromotive force as a function of the modulus of the electromotive force of the order 3 phase, a 5-phase star coupling is more favorable than a 5-phase pentagonal pair.
La
Cette courbe 610 est représentée dans un repère orthonormé comprend en abscisse un axe 601 et en ordonné un axe 602. L'axe 601 est sans unité. L'axe 601 correspond à la valeur de K mentionné précédemment. L'axe 602 est exprimé en Volt. La courbe 610 permet ainsi d'exprimer en volt 610 la force électromotrice résultante en fonction de la valeur de K.This
Il apparait que la valeur maximale de la force électromotrice résultante est obtenue pour K égale à une valeur 604, alors qu'un plancher est obtenu pour les valeurs de K comprise entre 603 et 605.It appears that the maximum value of the resulting electromotive force is obtained for K equal to a
En termes mathématiques, la courbe 610 peut s'exprimer à l'aide de la formule ci-dessous :
- ((V)1
st )max correspondant à la valeur maximale de FEM d'une phase pour la première harmonique - ((V)3
rd )max correspondant à la valeur maximale de FEM d'une phase pour la troisième harmonique
- (( V ) 1
st max corresponding to the maximum FEM value of a phase for the first harmonic - (( V ) 3
rd max corresponding to the maximum EMF value of a phase for the third harmonic
On obtient alors la formule
Claims (15)
ledit rotor comprenant des pôles nord (N) et sud (S) formés alternativement dans un sens de rotation du rotor, ledit rotor présentant un pas polaire angulaire (Thêta) égal à 2π divisé par 2P, P étant le nombre de paires de pôles du rotor; et ledit rotor (4) comprenant :
caractérisée en ce que chaque pôle magnétique en forme de griffe (61, 62, 71) comprend une première surface externe (712) qui fait face auxdites encoches,
et en ce que ladite première surface externe (712) présente une ouverture angulaire dans un plan de coupe d'un des pôles en forme de griffe, ladite l'ouverture angulaire maximale (Obe) pour l'ensemble des plans de coupe d'un des pôles en forme de griffe est égale à Obe = K x Thêta, avec K compris entre 0,4 et 0,8.Rotating electric machine, for example an alternator, comprising a rotor (4) and a stator provided with notches for receiving a winding,
said rotor comprising north (N) and south (S) poles alternately formed in a direction of rotation of the rotor, said rotor having an angular polar pitch (Theta) equal to 2π divided by 2P, where P is the number of pole pairs of the rotor; and said rotor (4) comprising:
characterized in that each claw-shaped magnetic pole (61, 62, 71) comprises a first outer surface (712) facing said notches,
and in that said first outer surface (712) has an angular opening in a cutting plane of one of the claw-shaped poles, said maximum angular aperture (Obe) for all of the cutting planes of a Claw-shaped poles are equal to Obe = K x Theta, with K between 0.4 and 0.8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1558105A FR3040561B1 (en) | 2015-09-01 | 2015-09-01 | ROTATING ELECTRICAL MACHINE WITH ROTOR COMPRISING CLAY-SHAPED POLES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3139469A1 true EP3139469A1 (en) | 2017-03-08 |
EP3139469B1 EP3139469B1 (en) | 2021-02-24 |
Family
ID=56263739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16182053.5A Active EP3139469B1 (en) | 2015-09-01 | 2016-07-29 | Rotating electrical machine provided with a rotor comprising claw-shaped poles |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3139469B1 (en) |
FR (1) | FR3040561B1 (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0515259A1 (en) | 1991-05-21 | 1992-11-25 | Valeo Equipements Electriques Moteur | Three-phase alternator for automobile type vehicles |
FR2710200A1 (en) | 1993-09-16 | 1995-03-24 | Valeo Equip Electr Moteur | Collector reported for alternator including motor vehicle. |
FR2710197A1 (en) | 1993-09-16 | 1995-03-24 | Valeo Equip Electr Moteur | Collector reported for alternator including motor vehicle. |
FR2710199A1 (en) | 1993-09-16 | 1995-03-24 | Valeo Equip Electr Moteur | Attached manifold for alternator including motor vehicle. |
EP0784368A1 (en) * | 1996-01-10 | 1997-07-16 | Gec Alsthom Moteurs Sa | Claw pole type magnetoelectric rotor |
EP0803962A1 (en) | 1996-04-23 | 1997-10-29 | Bamo Elettroutensili S.r.l. | Polar package construction for permanent magnet rotors of alternators and the like |
EP0831580A2 (en) | 1996-09-21 | 1998-03-25 | AKO-Werke GmbH & Co. KG | Current controlled drive device for electric commutated permanent magnet motors |
WO2001069762A1 (en) | 2000-03-10 | 2001-09-20 | Valeo Equipements Electriques Moteur | Polyphase electric rotary machine |
US20080038122A1 (en) * | 2006-07-21 | 2008-02-14 | Satoshi Kikuchi | Electric axial flow pump |
JP2009201298A (en) * | 2008-02-22 | 2009-09-03 | Panasonic Electric Works Co Ltd | Claw-pole type motor and pump |
US20140175939A1 (en) * | 2012-12-25 | 2014-06-26 | Denso Corporation | Rotor for automotive alternator |
-
2015
- 2015-09-01 FR FR1558105A patent/FR3040561B1/en not_active Expired - Fee Related
-
2016
- 2016-07-29 EP EP16182053.5A patent/EP3139469B1/en active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0515259A1 (en) | 1991-05-21 | 1992-11-25 | Valeo Equipements Electriques Moteur | Three-phase alternator for automobile type vehicles |
FR2710200A1 (en) | 1993-09-16 | 1995-03-24 | Valeo Equip Electr Moteur | Collector reported for alternator including motor vehicle. |
FR2710197A1 (en) | 1993-09-16 | 1995-03-24 | Valeo Equip Electr Moteur | Collector reported for alternator including motor vehicle. |
FR2710199A1 (en) | 1993-09-16 | 1995-03-24 | Valeo Equip Electr Moteur | Attached manifold for alternator including motor vehicle. |
EP0784368A1 (en) * | 1996-01-10 | 1997-07-16 | Gec Alsthom Moteurs Sa | Claw pole type magnetoelectric rotor |
EP0803962A1 (en) | 1996-04-23 | 1997-10-29 | Bamo Elettroutensili S.r.l. | Polar package construction for permanent magnet rotors of alternators and the like |
EP0831580A2 (en) | 1996-09-21 | 1998-03-25 | AKO-Werke GmbH & Co. KG | Current controlled drive device for electric commutated permanent magnet motors |
WO2001069762A1 (en) | 2000-03-10 | 2001-09-20 | Valeo Equipements Electriques Moteur | Polyphase electric rotary machine |
US20080038122A1 (en) * | 2006-07-21 | 2008-02-14 | Satoshi Kikuchi | Electric axial flow pump |
JP2009201298A (en) * | 2008-02-22 | 2009-09-03 | Panasonic Electric Works Co Ltd | Claw-pole type motor and pump |
US20140175939A1 (en) * | 2012-12-25 | 2014-06-26 | Denso Corporation | Rotor for automotive alternator |
Also Published As
Publication number | Publication date |
---|---|
FR3040561A1 (en) | 2017-03-03 |
EP3139469B1 (en) | 2021-02-24 |
FR3040561B1 (en) | 2017-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3104501B1 (en) | Rotor for rotary electric machine | |
FR3015794A1 (en) | ELECTROMAGNETIC MACHINE ELEMENT WITH OPTIMIZED ELECTROMAGNETIC CIRCUITS INTO TRACKS IN THE FORM OF ANNULAR CRONELE LINES | |
EP3602755A1 (en) | Rotating electrical machine with optimised arrangement | |
FR3054746A1 (en) | ROTATING ELECTRICAL MACHINE HAVING AN INTERCONNECTOR WITH SUPPORT BEACLES | |
EP3053262B1 (en) | Multiphase electric rotating machine with at least five phases | |
FR3054745A1 (en) | ROTATING ELECTRIC MACHINE HAVING AN INTERCHARGER WITH A NUT HOOK | |
EP3139469B1 (en) | Rotating electrical machine provided with a rotor comprising claw-shaped poles | |
EP2078332B1 (en) | Toothed rotor equipped with ferromagnetic interpolar elements of optimized width and rotary machine equipped with such a rotor | |
FR3051295A1 (en) | ROTATING ELECTRIC MACHINE WITH INCREASED POWER | |
FR3054744A1 (en) | ROTATING ELECTRIC MACHINE WITH SELF-CONDUCTING INTERCONNECTOR | |
FR3104338A1 (en) | Flange for rotating electric machine | |
FR3098038A1 (en) | ROTATING ELECTRIC MACHINE WITH CO-AXIAL CONFIGURATION | |
EP2866344A2 (en) | Polyphase rotary electrical machine having at least five phases with optimised control | |
EP4078781B1 (en) | Rotary electric machine provided with an end shield having an inner face configured for cooling | |
FR3098040A1 (en) | WATER-COOLED ROTATING ELECTRIC MACHINE | |
WO2016071225A2 (en) | Stator for an alternator or an electric machine | |
FR3058846B1 (en) | ROTATING ELECTRICAL MACHINE COMPRISING A ROTOR SHAFT AND A BEARING | |
EP3925061A1 (en) | Mechanical-commutator polyphase synchronous electric machine | |
FR3098039A1 (en) | Rotor for electric machine and electric machine equipped with such a rotor | |
FR3044483A1 (en) | ELECTRIC ROTOR ROTOR WITH ROTATING ELECTRICAL MACHINE WITH CURVED SHAFT GRIFFLES | |
WO2021099023A1 (en) | Rotor for a rotating electrical machine | |
WO2021122489A1 (en) | Rotor of a rotary electric machine | |
FR3085805A1 (en) | INTERCONNECTOR COMPRISING MEANS FOR GUIDING PORTIONS OF CONDUCTORS | |
FR3052001A1 (en) | ROTATING ELECTRIC MACHINE WITH IMPROVED CONFIGURATION | |
FR3098043A1 (en) | Polyphase synchronous electrical machine with mechanical switch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20160729 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20180517 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H02K 19/22 20060101ALI20201023BHEP Ipc: H02K 1/24 20060101AFI20201023BHEP Ipc: H02K 19/10 20060101ALN20201023BHEP |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H02K 19/22 20060101ALI20201102BHEP Ipc: H02K 1/24 20060101AFI20201102BHEP Ipc: H02K 19/10 20060101ALN20201102BHEP |
|
INTG | Intention to grant announced |
Effective date: 20201118 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602016052992 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1365721 Country of ref document: AT Kind code of ref document: T Effective date: 20210315 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20210224 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210624 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210524 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210525 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210524 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1365721 Country of ref document: AT Kind code of ref document: T Effective date: 20210224 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210624 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602016052992 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
26N | No opposition filed |
Effective date: 20211125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20210729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20210731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210731 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210729 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210624 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210729 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20160729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230528 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230727 Year of fee payment: 8 Ref country code: DE Payment date: 20230712 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210224 |